PLC建筑电梯控制系统中英文外文翻译文献.docx

PLC建筑电梯控制系统中英文外文翻译文献.docx

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PLC建筑电梯控制系统中英文外文翻译文献

中英文资料翻译

ApplicationofPLCintheElevatorControlSystemofIntelligenceBuilding

Abstract:

Thepapermainlydiscussesonesubsystemofintelligencebuildingsystem:

theelevatorcontrolsystem.ThePLCstrongabilityininterferenceandsoonmakestheelevatorindustryoneafteranothertoapplythePLCtotheelevatorcontrolsysteminordertoreplacetherelaybeingusedintraditionalelevatorcontrolsystem.TheApplicationofPLCintheElevatorcontrolsystemreducesthebreakdownrateandefficientlyimprovestheoperatingreliabilityoftheelevatorwithsafety.Thestructureofsystemisalsosimpleandtightlypacked.Theworkingprincipleoftheelevatorcontrolsystemis:

ThespotcontrolinformationissendintotheＰＬＣfromthecustomerinputdevicesfirstly,thenthePLCcontrolcabinetisrequiredtosendoutthecontrolsignaltodrivetheequipmentsaccordingtothesystemdemands.Theelevatorcanthenproceedthehomologousactionaccordingtothecontrolrequest.ThepaperselectsＯＭＲＯＮcompany’sＣ200HEseriesPLC,introducingpartsofsignalhookupoftheelevatorcontrolsystemandexplainingthefunctionofthecontrolcabinet.Lastlytheautomationprogrammingisintroduced.Simulatedexperimentsenunciatesthatthedesignmethodisviable.Itcanmakethepersonneloftheindustrymanagementcentertolong-distancemonitorandcontroltheelevatorincontrolcenter,toconnecttheelevatorcontrolsystemwithintelligencebuildingindustrymanagementsystembyEthernetorspecial-purposenetworksuchasLonWorks.Theelevatorworkingstatecanalsobetimelywatched.Thesenotonlycanrealizescientificcentralizedmanagementoftheelevator,butalsocanlowertheelevatormaintenancecostetc.Itisoneofthedevelopingdirectionofintelligencebuildingelevatorcontrolsystem.

Keywords:

PLC;intelligencebuilding;elevatorcontrolsystem;workingprinciple;programdesign

Ⅰ.Introduction

In1980sThefirstintelligencemansionhadbeencompletedinAmerica,thenintelligencebuildinghasbeenabroadlytakenattentionsbythewholeworld.Theconceptofintelligencebuildinghasbeenputdifferentmeaningsalongwiththedevelopmentofsociety.Theearlystageintelligencebuildinghadbeenthoughtthatitisequaltotheintelligentmansion,butnowtheintelligencebuildingnotonlyincludestheintelligencemansionsbutalsoinvolvesintelligenceresidentialdistricts.Thispapermainlydiscussesonesubsystemofintelligencebuildingsystem:

theelevatorcontrolsystem.

Inintelligenceresidentialdistrictstheenterprise’sinformationmanagingsystemmainlytakeschargeofthethingswhichrelatedtothedailylife,forexamplesupervisingthedistrictequipments,managingvehicles,disposingcriticalsituationsandsoon.Theelevatorsupervisingandcontrolsystemisalsonecessarytotheintelligenceresidentialdistricts.Howtomakepeoplefeelsafe,stableandcomfortableandhowtosaveenergyresourcesandprotectenvironmentsandsoonarethebasicrequirementstotheelevatorcontrolsystem.

PLCisacommonindustrycontroldevice.Itisaspecialindustrycontrolcomputerwhichhastheperfectfunctionandsimpleframe.ThePLCstrongabilityininterferenceandsoonmakestheelevatorindustryoneafteranothertoapplythePLCtotheelevatorcontrolsystem,inordertoreplacetherelaybeingusedintraditionalelevatorcontrolsystem.TheApplicationofPLCintheelevatorcontrolsystemreducesthebreakdownrateandefficientlyimprovestheoperatingreliabilityoftheelevatorwithsafety.Thispapermainlydiscussestheelevatorcontrolsystem’sworkingprinciples,thesystem’ssoftwareandhardwarerealizationmethodsandsoon.

Ⅱ.TheWorkingPrincipleofElevatorControlSystem

InFig.1theHardwareStructureGraphofElevatorControlSystemispresented.

Fig.1TheHardwareStructureGraphofElevatorControlSystem

TheWorkingPrinciplesofElevatorControlSystemarestatedasfollows:

ThespotcontrolinformationissendintothePLCfromthecustomerinputdevicesfirstly,thenthePLCcontrolcabinetisrequiredtosendoutthecontrolsignaltodrivetheequipmentsaccordingtothesystemdemands.Theelevatorcanthenperformthehomologousactionaccordingtothecontrolrequest.Therearevelocityfeedbackdevicesinsystem,whichadoptmeasurevelocitygeneratorstoprovidetheelevatorvelocitiesandgenerallyareinstalledinthetailoftowmotors.Sothisisafeedbackcontrolsystem,whichcanimprovethesystem’scontrolprecision.

Ⅲ.TheHardwareConfigurationofControlSystem

Itisnotnecessarytodointerfacecircuitintheelevator’sPLCcontrolsystem.WhatweshoulddoistosendthesignalstoPLCdigitalinputterminals.Thesignalsincludeinsideandoutsidecallingsignals,floorlocationinspectingsignals,limitinglocationsignals,openingandshutdowntheelevatordoorsignalsetc.TheDCpowerwhichisprovidedtoPLCcanbeusedasindicatorlightpower.ThePLCoutputpointscanbedirectlyusedtocontroltransducersforthepurposeofelectricalmotor’spositiveturnandreverse,stopandcontroleachsegmentvelocityandsoon.ＯＭＲＯＮcompany’sＣ200HEseriesPLChasbeenselectedasmajorcontrolconfigurationaccordingtotheinput/outputpointsandthelengthofuser’sprogram.Ontheotherhandwealsoconsiderthatthesystem’sfunctioncanbeexpandedinthefuture.Ｃ200HEseriesPLC,whoseperfectfunctionandstrongreliability,canmeetthesedemandsatpresent.

Moreover,inputandoutputdevicesareneededinelevatorcontrolsystem,besidesthePLC,system’smajorcontroldevice.

PartofsignalhookupsoftheelevatorelectriccontrolsystemisshowninFig.2.

Thecontrolcabinetisthecontrolcenter,fromwhichwecansendoutvariouscontrolcommands.Thecontrolcabinetoftenwasinstalledintheelevatorroom.Theelectricdevicesandsignalsystems,forexamplethecontactors,relays,capacitances,resistors,rectifiersandtransformersetc.,arecentralizedinthecontrolcabinet.ThePowerofthecontrolcabinetwasimportedfromthechiefpoweroftheelevatorroom.Thispowerwasalsointroducedintocontrolpanelbysoftcablesandwaslinkedwitheachcontrolbuttons.Thepowerlineswhichwasderivedfromcontrolcabinetwasdeliveredtotowelectricmotors.Otherscontrollinesandsignallineswereseparatelysenttoeachfloorjunction

Ⅳ.Programdesign

Thedesignincludestwoparts:

hardwareandsoftware.Thehardwaredesignisthebaseofsoftware.Consideringthatthecontroldemandsarerelativelycomplex,wedesigntheprogramsseparatelyaccordingtothecontrolfunction.Furthermore,wefollowtheprincipleasfollows:

Whentheelevatorisascending,theascendingdemandsarepriortootherdemands;Whentheelevatorisdescending,thedescendingdemandsarepriortootherdemands.TheSequentialFunctionChart（SFC）isadoptedduringtheboxestoformelevator’sexecutivecircuitrydesign.Itisamethodspeciallyusedinindustrialsequentialcontrol.TheSFCmethodcandescribethesystem’sworkingprocedureingreatdetail.Forexamplethereisathreelayersintelligencebuilding.Asubprogram,thecallingfromthethirdflooraselevatorinthefirstfloor,isshowninFig.3withSFC.

WhenallSFCaredrawnandI/Oaddresslistsarepresented,wecanconverttheSFCtoLadderDiagram（LD）.Consideringthestrictdemandsfortimeandforlockedeachother,weintroduceworkingbitstorememberworkingsteps.Weshouldwriteouttheworkingbitscontrolprogram,whichcanlinktogethereachstepandmakethepreviousstepasthenextsteprestrictioncondition.Thustheactualoutputsarethelogiccombinationoftheseworkingsteps.

Ⅴ.Conclusion

Thesystemprogramhasbeendebuggedcompletelyatpresent.Simulatedexperimentenunciatesthatthedesignmethodisviable.ApplicationofPLCintheelevatorcontrolsystemisaneffectivemethod.Itcanmakethepersonneloftheindustrymanagementcentertolong-distancemonitorandcontroltheelevatorincontrolcenter,toconnecttheelevatorcontrolsystemwithintelligencebuildingindustrymanagementsystembyEthernetorspecial-purposenetworksuchasLonWorks.Theelevatorworkingstatecanalsobetimelywatched.Thesenotonlycanrealizescientificcentralizedmanagementoftheelevator,butalsocanlowertheelevatormaintenancecostsetc.Itisoneofthedevelopingdirectionofintelligencebuildingelevatorcontrolsystem.

References

[1]Liangjianqi,Duanzhengang,andHewei.Communication

ImplementationofPLC-BasedElevatorRemoteMonitoringSystem（inChinese）[J]JournalofBeijingTechnologyandBusinessUniversity2003,21

（2）:

18-21

[2]MaHongqian,ZhangXin.ApplicationofPLCinHigherBuildingElevatorControlSystem（inChinese）[J]JournalofLiaoningHigherVocationalTechnicalInstitute2002,4（5）:

86-88.

[3]CuiGuangyuan.TheApplicationofPLCtoElevatorControl.（inChinese）[J]JournalofDongbeiElectricalPowerTechnology2003,（7）:

50-52.

AuthorBiographies

ThefirstauthoriscurrentlyworkingasateacherinTaiyuanUniversityofTechnology.Hercurrentresearchinterestsincludesignalprocessing,intelligencecontroletc.

ThesecondauthoriscurrentlyworkingasateacherinTaiyuanUniversityofscienceandTechnology.Hercurrentresearchinterestsincludetelecommunication,intelligencecontroletc.

PLC在智能建筑电梯控制系统中的应用

摘要：

本文主要讨论了智能建筑系统的一个子系统：

电梯控制系统。

PLC具有强抗干抗能力等优点使得电梯工业一次又一次的将PLC应用于电梯控制系统，以取代传统的使用继电器控制电梯系统。

PLC在电梯控制系统应用，降低了故障率，并有效地提高了电梯运行的可靠性与安全性。

系统的结构简单、紧凑.电梯控制系统的工作原理是：

首先将使用者的输入命令发送到PLC中，然后PLC根据系统的要求，发出控制信号以驱动外围设备，电梯就可以进行相应的动作了。

本文选择omron（欧姆龙）公司的C200HE系列的PLC，介绍了电梯控制系统的外围接线电路，并解释该控制装置的功能。

最后介绍编程，通过模拟实验证明了该方案是切实可行的。

它可以使工业管理中心的工作人员在远距离的控制中心就可以实现对电梯的监测和控制，通过以太网或个人专用网络，如LonWorks，将电梯和控制中心连接起来，这样一来电梯的工作状况可以得到及时的监视。

这不但实